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hatrack

(62,159 posts)
Thu Mar 13, 2025, 09:42 AM Mar 13

UK Intends To Pursue Sulfate Aerosol Testing, Despite Substantial And Potentially Lethal Unknowns

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In one widely touted proposition, fleets of aircraft would continually inject sulphur compounds into the upper atmosphere, simulating the effects of a massive array of volcanoes erupting continuously. In essence, we have broken the climate by releasing gigatonnes of fossil-fuel carbon dioxide, and solar geoengineering proposes to “fix” it by breaking a very different part of the climate system. The fix is more like taking aspirin for cancer, treating symptoms but leaving the underlying malignancy to keep growing. It poses arguably unsurmountable governance issues in our turbulent modern political environment. And if we become reliant on solar geoengineering, the world will be left subject to a catastrophic termination shock if the intervention is ever halted – any time during the next millennium or even longer.

Since our 2021 commentary, the situation has grown far worse, with tens of millions of dollars pouring into the scheme, mostly from private philanthropy. Bill Gates was an early backer, and the tech and fintech industries have piled on since. But we never imagined that the UK government itself would be leading the charge into what is almost universally recognized as the most dangerous and destabilizing sort of research: field trials that risk developing dangerous technology and paving the way for deployment. That is precisely the emphasis as the UK’s Advanced Research and Invention Agency (Aria) prepares to hand over $58m for solar geoengineering research and development. Outdoor experimentation is such a controversial undertaking that even the Simons Foundation, which funds research in solar geoengineering, has shied away from making grants in this area.

Aria, with an initial budget of £800m, arose from the fevered dreams of Dominic Cummings at the height of the Boris Johnson crony capitalism years. After a rocky start for the office, Cummings’s legacy lives on in the current Labour government, which seems to have lost track of what Aria is doing. Aria, a wannabe clone of the US Defense Advanced Projects Agency (Darpa), works in darkness. It is not subject to freedom of information requests. It gives a pot of money to each of its (often inexperienced) directors, to direct expenditure largely as they wish, with only minimal peer review. The director in charge of the solar geoengineeering project is Mark Symes, an electrochemist with no background in climate science.

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The Aria programme thesis document on “cooling the Earth” makes for chilling reading. The project goes all-in on the supposed need for field trials, without making a case that such trials could answer any of the really important questions about what would happen with a sustained global-scale deployment. That the trials are described as “small scale” is little comfort, because even small-scale trials risk developing the technology somebody else (think Musk, Trump or Putin) might use for a large-scale deployment. (The Adam McKay film Don’t Look Up adroitly satirises the existential threat of a geoengineering-happy Musk-like plutocrat). There is extreme danger in launching such field trials into an environment with neither national nor international governance in place. The only governance would be that imposed by Aria directors, who are accountable to basically nobody. Worse, Aria can fund projects outside the UK, which invites shopping for sites with poor environmental regulations and limited opportunities for public protest. Provision of government funding for crossing the Rubicon to outdoor experimentation will inevitably legitimise such programmes, opening the floodgates for yet more money to pour into developing geoengineering technology worldwide. And once the engineers involved realise, as they inevitably will, that “small scale” experiments do not answer any of the truly critical questions, there will be demand for ever-larger trials, putting us on a slippery slope to full-scale deployment.

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Raymond T Pierrehumbert FRS is professor of planetary physics at the University of Oxford. He is an author of the 2015 US National Academy of Sciences report on climate intervention
Michael E Mann ForMemRS is presidential distinguished professor at the University of Pennsylvania. He is the author of Our Fragile Moment: How Lessons from Earth’s Past Can Help Us Survive the Climate Crisis

https://www.theguardian.com/commentisfree/2025/mar/12/solar-geoengineering-uk

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UK Intends To Pursue Sulfate Aerosol Testing, Despite Substantial And Potentially Lethal Unknowns (Original Post) hatrack Mar 13 OP
Good sue4e3 Mar 13 #1

sue4e3

(736 posts)
1. Good
Thu Mar 13, 2025, 01:03 PM
Mar 13

this is what is going to have to happen. We need to combat climate change or die. People need to quit complaining . We have already deployed a MASSIVE atmosphere experiment, that is killing us. We are going to have to do things to counter that and to cut off our nose to spite our face is as dumb as the people that think what we have already done is good for us

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